Home Made Circuits and Schematics

This two-transistor white noise generator has a surprising feature – about 30dB more noise than the more traditional designs. Q1 and Q2 can be any small-signal transistors with a beta of up to 400. The reverse-biased emitter-base junction of Q1 provides Using an 8-pin PSoC to Produce 100Khz Pseudo Random White Noise The block diagram in Figure 2 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000C0000005F0052006500660039003000360038003400340036000000 better explains the operation of the circuit. By reverse-engineering A digital white noise generator can be used for drums, gunshots, explosions and other similar sound effects. Finally a digital mixer combines these signals and feeds them to the output amplifier. The diagram below indicates This white noise generator is intended to be used on a 12-35 volt system such as a car or boat. The 7809 regulator will provide a stable 9 volt supply to power the circuit. The white noise generator supplies a white noise output to the inputs (pins 2 & 7 Now even when there is no current going through the circuit, the resistor is still creating some thermal noise [itex]S_R(f) = 4k_BTR[/itex] due to the motioin of individual electrons. This is just simple white (/Johnson) noise, which is the same for Previously, we saw [Giorgio] generate random numbers with a Chua circuit, but for all the complexity of building an electronic strange attractor there’s actually a much simpler source of random data: a white noise generator. [Giorgio]’s random number .

White frequency noise generator produces 1 or 10 volts P-P over a frequency range of 1Hz to 100kHz. The Zener Noise is amplified by U1A and U1B in two x10 steps, to approximately 1V P-P and 10V P-P. If this is too much noise for the circuit under From the Bob Moog Foundation Archives Bob for a “random generator.” This is likely the precursor to the 903 “White Sound Source” below. The 903 module was an early “White Sound Source” module that provided white noise. Diagrams: White-noise generator reduces noises by masking them. To reduce sound through existing wall, follow the three plans at left. (Edward Lipinski) This month’s installment describes practical ways of using bipolars in the linear mode to make simple, but useful sine wave and white-noise generator and the circuit oscillates at a frequency determined by L3-C1. The diagram shows typical coil .